Master Catalog Listing

Applications

For most general purpose drilling operations.

Although appropriate for a wide range of normal ferrous and non-ferrous materials, the drills are commonly preferred for machining non-ferrous and non-metallic materials and alloys, including aluminum, magnesium, zinc, brass, bronze and other non-ferrous materials and alloys.

The left hand helix requires that these drills be used for screw machines, portable or stationary machine tools or hand held manual drills with a counter-clockwise spindle rotation.

This helix design is also useful for applications where the chips must eject in a direction opposite from normal.

For optimal performance and the best tool life, suitable lubricating/cutting oils or the appropriate coolant fluids are recommended.

Features

Left hand (counter-clockwise rotation) cutting direction.

Standard two flute design with opposite helix direction.

Standard spiral, helical flutes.

Straight shanks that correspond to the drill diameter.

Jobbers length that corresponds to the drill diameter. The jobbers length used for each of these drills is variable and is determined by the specific drill diameter, offering the best balance between overall drill rigidity and depth capacity for each drill diameter.

Technical Data

Manufactured from high speed steel.

Precision ground flutes.

Cylindrically ground.

General purpose drills for counter-clockwise spindle rotation.

118° point angle and standard web thickness.

Bright or black oxide finish depending upon our stock.

TTC 25/64" HSS Left Hand Jobbers Drill -118? Point

Product Specifications

Brand

TTC PRODUCTION

Size

25/64"

Size Type

Fractional

Tool Material

High Speed Steel

Finish Coating

Bright Finish

Drill Point Angle

118°

Decimal Size

.3906"

Drill Grade

General Purpose

Drill Type

Jobbers Length

Diameter

.3906"

Cutting Direction

Left Hand

Flute Shape

Standard Spiral, Helical Flute

Hardness

58 to 60 RC

Manufacturing Method

Cylindrically ground

No. of Flutes

2

Overall Length

5-1/8"

Length Style

Jobbers Length

Point Sharpening Type

Normal Point

Series

A11

Prop. 65

Yes

Shank Style

Straight Shank

Type

Left Hand High Speed Steel Jobbers Length Twist Drill

Weight

0.1 lbs.

Country of Origin

Import

Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.